Clarifying vibrator



Feb. 24. 1925.

' 1,527,207 F. E. MATHEY ET AL CLARIFYING VIBRATOR Filed Dec. 28, 1925 5 VEH Term,

FEEDER/c E N T LOUIS MATHEY,

A Horne Patented Feb. 24, 1925.

UNITED STATES PATENT OFFICE.

FEEDER-IO E. MATHEY AND LOUIS A. MATI-IEY, OF INDIANAPOLIS. INDIANA.

OLARIFYI'NG VIBRATOR.

Application filed December 28, 1823.

To a whom it may concern:

Be it known that we, FREDERIU E. Martini and LOUIS A. M.-vrnnr, citizens of the United States, residing at Indianapolis, in the county of Marion and State of Indiana, have invented anew and useful Clarifying Vibrator, of which the following is a specifiat-ion.

Our invention relates to an improvement for clarifying and amplifying sound, and the objects of our invention are to effect an increased distinctness in the sound issuing from a. directing and amplifying means as the horn used in a phonograph or a radio amplifying device, to effect a natural reproduction of the original sound in that the original inflection, en-unciation, and tone are reproduced without distortion, and to amplify the sound.

e find that, when an orchestra or band selection is reproduced through a horn of a phonograph or a radio device containing our invention, the usual composite rendition is so altered that the tones of the individual instruments of the orchestra or band are plainly distinguishable. An appreciable increase in the volume of the sound issuing is also noted.

e accomplish these and such other objects as may hereinafter appear by the means as illustrated in the accompanymg drawing, in which- Fig. 1 is a side elevation of our clarifying vibrator; Fig. 2, a side elevation of the vibrator rotated clockwise through an angle of forty-five degrees from the position shown in Fig. 1; Fig. 3, a sectional view through a reproducing horn showing the method of employing the vibrator; Fig. a. section taken on the line 4- of Fig. 1; and Fig. 5, a. section taken on the line 55 of Fig. 2.

Like. characters of reference indicate like parts throughout the several views.

\Ve form a bifurcated body 5 as indicated by the section, Fig. 5, by making a slot through the central portion, slightly exceeding in width the thickness of the body, to form the fins 6 and 7, Figs. 4c and 5. The body is reduced at the one end to form the conical head 8.

The fins 9 and 10 are formed by centrally slotting a piece of material similar in shape and thickness to the body 5 clear across its entire length with the exception of the tie 11 near the tapered ends a, and are rigidly Serial No. 683,120.

secured to the body 5 by seating the tie 11 in the end of the slot in the body 5 to cause the fin ends o to frictionally engage with the sides of the body 5. The head 8 is frictionally held in the post- 12 as a support for the combined fin members 6, 7, 9, and 10.

Our device is mounted in a horn 13, Fig. 3, by pressing the post 12 back into the horn to contact firmly with the horn wall such that the fins do not touch the horn wall and extend out-ward toward the mouth of the horn.

Ive have here shown the component members of our vibrator as being frictionally united. It does not interfere with the successful operation of our invention to effect a more permanent conjunction of the mem bers, and the post 12 may be more permanently secured in the horn 13 if desired by any such means as screws passing through the horn wall into the ends of the post 12.

Ve find, that by securing the head 8 in the post 12 to locate the post 12 to have its axis bisect the angle of the two planes of the fins as in Fig. t, the vibrator is slightly more effective than when the post is in either fin plane.

Having fully described our invention in the form now best known to us, we desire to point out that its structure is capable of numerous variations without departing from the spirit of the invention, and we therefore do not desire to be limited to the precise form as shown any more than may be required by the following claims.

e claim:

1. In a clarifying vibrator, the combina tion with sound directing and amplifying means, of a plurality of separated vibrating members within but not contacting said means, a head receiving and supporting said vibrating members by their inner ends and a post normal to and centrally receiving and supporting said head, said post contacting said sound directing and amplifying means by its opposite ends.

2. In a clarifying vibrator, the combination with sound directing and amplifying means, of a relatively thin. flat, centrally bifurcated body having its inner end tapered, a head piece extending backwardly from the tapered end of the body and in the same plane, a second centrally bifurcated body similar to and secured at right angles to the first bifurcated body by means of a slot cut in the tapered end to permit the tapered end of said first body to enter said slot when said second body is inserted between the bi furcated ends of said first body and pressed inwardly, said two bodies being so united as to form four separated outwardly extending Vibrating members free of contact with said sound directing and amplifying means, and a post normal to and centrally receiving and thereby supporting said head piece, said post firmly contacting said sound directing and 10 amplifying means by its opposite ends,

Signed at Indianapolis, in the county of Marion and State of Indiana,-this 22 day of December, 1923.

FREDERIC E. MATHEY, LOUISA. MATHEY. 

